12V battery issues

[EEEE]

EEEE, you are correct. In the days following, ancillary battery voltage continued to drop and needed repeat charging.
The car needs to go to local Honda dealer for diagnostic check before spending money on a new 12v battery.

Its possible that your drain is normal, but the battery is so knackered that it wont help. If the battery is sort of OK, and the dealer does find what is draining the system 'unexpectedly' , please ask the dealer for some more information and share it with us - we have yet to track down definitively the mysterious drain (because it happens so infrequently).

[EEEE]

Thanks for the link…. Pulled the trigger on the Bosch, now got the black screen of doom and no audio .

Anyway read that it’s probably the anti theft according to manual but will run to work and see how it goes….

Tried the audio fuse 19 trick no joy so hoping for more insight…

I've never had the black screen of doom (as you put it) when having had flat batteries or removed batteries. I would check every fuse in case more have blown.

If RAC connected the jump pack the wrong way round then that would be pretty shocking (no pun intended), as there is even a massive red cap you have to remove to access the terminal. Let us know what you find.

[hurricaneh5]

Thanks for the link…. Pulled the trigger on the Bosch, now got the black screen of doom and no audio .

Anyway read that it’s probably the anti theft according to manual but will run to work and see how it goes….

Tried the audio fuse 19 trick no joy so hoping for more insight…

I've never had the black screen of doom (as you put it) when having had flat batteries or removed batteries. I would check every fuse in case more have blown.

If RAC connected the jump pack the wrong way round then that would be pretty shocking (no pun intended), as there is even a massive red cap you have to remove to access the terminal. Let us know what you find.

yeah that black screen of doom still here, booked into stealer Thurs explained what happened hoping a factory reset will resolve .

As for RAC your right shocking, the 175a fuse for reference is not in uk currently Belgium £77 through family garage account three week lead time….

[hurricaneh5]

Update: turns out RAC blew 10a fuse in driver footwell when they blew the 175a fuse..

So screens back no stealer fees as I got a chance to go through the fuses after work.

[EEEE]

Glad you got it sorted!

[5thcivic]

Good end to your story, not good advert for giving money to the RAC!

[mrdo]

Hi, I've been following this thread for a while now.

As a prospective owner, this issue is stopping me from considering buying one until the fault is identified. I haven't seen any mention of Honda or any of the dealers acknowledging that there is a potential issue - can anyone confirm whether this is the case?

[EEEE]

Hi, I've been following this thread for a while now.

As a prospective owner, this issue is stopping me from considering buying one until the fault is identified. I haven't seen any mention of Honda or any of the dealers acknowledging that there is a potential issue - can anyone confirm whether this is the case?

Honda couldn't care less about a few flat batteries.

It happens infrequently, just be prepared to buy a jump pack and learn how to open the car with a key, and leave 5 minutes at the start of every journey in case you need to jump start it. Also keep a spare £100 on hand in case you need a new car battery because once they are flattened they rarely come back to life. I shan't be pulling my door cards apart or probing anything until it's outside of warranty in April though - then I shall begin some organised testing to try and get to the bottom of it.

[iHansz]

Hi, I've been following this thread for a while now.

As a prospective owner, this issue is stopping me from considering buying one until the fault is identified. I haven't seen any mention of Honda or any of the dealers acknowledging that there is a potential issue - can anyone confirm whether this is the case?

Don't be put off. There are, like me, owners who don't suffer from anything. You always read only what isn't good, but nothing from owners who have no problems at all. Have no problems with the 12-volt battery, no problems with rattles, no problems with handles not working, no problems with windows not closing, etc., just the App being jerky.

[Marcin]

Witam wszystkich jestem nowy na forum Hondy E.Podzielę się swoim doświadczeniem.Niedawno miałem problem z baterią ,kupiłem nową i monitoring do niej,żeby zbadać co się dzieje.2 tygodnie było ok ,aż tu nagle dzisiaj alarm ,o 5 rano był spadek i coś bardzo rozładowywało mi baterię trwało to 3 godz.Ładowarka typ 2 była podłączona i automatycznie włączyła ladowanie bateri 12 v.Nastepnie po powrocie z pracy podłączyłem auto do ładowarki typ 2 i 5 godz naładowało 100 % .Było wszystko ok i tu nagle znowy coś się zadziało i zaczęło drenować akumlator 3 godz .Dostałem alarm na telefon ,że spadek pojemności bateri do 50 %.Dodam ,że auto stoi ciepłym w garażu .Dziwna sprawa ,może ma ktoś pomysł co to może być ?